
Stoic philosopher Seneca once marveled at how stupid even the smartest people are when it comes to protecting their time: “No person hands out their money to passersby, but to how many do each of us hand out our lives! We’re tightfisted with property and money, yet think too little of wasting time, the one thing about which we should all be the toughest misers.”
We needed to build systems that embrace failure as a natural occurrence even if we did not know what the failure might be. Systems need to keep running even if the “house is on fire.” It is important to be able to manage pieces that are impacted without the need to take the overall system down. We’ve developed the fundamental skill of managing the “blast radius” of a failure occurrence such that the overall health of the system can be maintained.